IP Library Granted Patent US 4,842,013
Granted Patent Utility
US 4,842,013 · App. 07/161,860

Droop compensated direct acting pressure regulator

Inventors: Donald D. Rice, Mark E. Hood
Patented Case View Patent ↗
Granted: Jun 27, 1989 Filed: Feb 29, 1988
Inventors
Donald D. Rice
Mark E. Hood
Assignee (at issue)
Fisher Controls International LLC

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,842,013
App. No.
07/161,860
Filed
1988-02-29
Granted
1989-06-27
Kind
A